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CheckThat AI Platform
CheckThat AI is a unified LLM access platform that connects you to 11+ models from leading AI providers through a single API. Built with integrated fact-checking and claim normalization capabilities, it’s the perfect solution for applications requiring both AI power and truth verification.

🚀 Quick Start

Get started with CheckThat AI in under 5 minutes

🔌 Python SDK

Install our Python SDK for seamless integration

📖 API Reference

Complete API documentation and endpoints

🔑 Authentication

Learn how to authenticate with provider API keys

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Key Features

Unified LLM Access

Access OpenAI, Anthropic, Google Gemini, xAI, and Together AI models through one API

Built-in Fact-Checking

Every response includes claim verification and evidence sourcing

OpenAI Compatible

Drop-in replacement for OpenAI SDK - no code changes required

Multiple Providers

Switch between providers seamlessly with your existing API keys

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Supported Models

  • OpenAI
  • Anthropic
  • Google
  • Others
  • GPT-5 - Latest flagship model
  • GPT-4o - Optimized for speed and accuracy
  • o3 - Advanced reasoning model
  • o4-mini - Efficient lightweight model

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Getting Started

1

Install the SDK

Install CheckThat AI Python SDK via pip:
pip install checkthat-ai
2

Get your API keys

Obtain API keys from the providers you want to use:
3

Make your first request

Use CheckThat AI exactly like the OpenAI SDK:
from checkthat_ai import CheckThatAI

client = CheckThatAI(api_key="your-openai-key")

response = client.chat.completions.create(
    model="gpt-4o",
    messages=[
        {"role": "user", "content": "Fact-check: The Earth is round"}
    ]
)

print(response.choices[0].message.content)

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Why CheckThat AI?

🔄 One API, Multiple Providers

No need to manage multiple SDKs or endpoints. Switch between OpenAI, Anthropic, Google, and more with a single interface.

✅ Built-in Fact-Checking

Every response includes claim analysis, verification, and evidence sourcing - perfect for applications requiring accuracy.

🚀 Zero Migration Effort

Drop-in replacement for OpenAI SDK. Your existing code works immediately with enhanced capabilities.

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Ready to Start?

View the Quick Start Guide

Get up and running with CheckThat AI in under 5 minutes

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Community & Support

GitHub

View source code and contribute

PyPI Package

Install the Python SDK

Contact Support

Get help from our team